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- readme.x64
- ==========
- [Note - the gvmat64.asm longest_match routine in Windows 64-bit assembler
- and makefile.a64 used to compile it were provided at the last minute and
- are currently untested by Info-ZIP. They are provided to allow testing of
- this optimization which is planned for inclusion in Zip 3.0.
- USE AT YOUR OWN RISK. That said, thanks Gilles for providing this
- optimization and we plan to better support it in Zip 3.0. 2/28/2005 EG]
- makefile.asm64 is a makefile for 64 bits optimized version of zip for
- Microsoft Windows running on AMD64 (Athlon64/Opteron) and Intel EM64T
- (the Pentium 4 and Xeon with 64 bits extension)
- makefile.asm64 contain a makefile for 64 Microsoft C++ for Windows 64 bits,
- extended edition (for both AMD64 and Intel EM64T), included in Visual
- Studio 2005
- to compile it, start the C++ AMD64 build environnement prompt,
- go to the zip source directory and start
- nmake -a -f makefile.a64
- This makefile uses gvmat64.asm, which is the optimized longest_match written
- in assembly code for AMD64/Intel EM64T
- gvmat64.asm was tested by Gilles Vollant on AMD64 with infozip, and also tested
- with a lot of file with zLib 1.2.2 on both AMD64 and Intel EM64T processor.
- It was written by Gilles Vollant, by modifiying the longest_match
- from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
- and modifying asm686 (1998), optimised assembly code from Brian Raiter,
- (see http://www.muppetlabs.com/~breadbox/software/assembly.html)
- Gilles Vollant
- info@winimage.com
- http://www.winimage.com
- http://www.winimage.com/zLibdll
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